Organization: Maryland Science CenterLocation: 601 Light StBaltimore , MD, 21230United StatesSee map: Google MapsPhone:(410) 685-2370 IMAX Showing: Deep Sky at Maryland Science CenterDates: 04/10/202504/11/202504/12/2025Show more datesHide these dates04/13/202504/15/202504/16/202504/17/202504/18/202504/19/202504/20/202504/22/202504/23/202504/24/202504/25/202504/26/202504/27/202504/29/202504/30/202505/01/202505/06/202505/07/202505/08/202505/09/202505/10/202505/11/2025Time: Times vary Organization: National Park ServiceLocation: 1849 C St NWWashington, DC, 20240United StatesSee map: Google MapsPhone:202-208-6843 2025 Free Entrance Days in the National ParksDates: 04/19/202506/19/202508/04/2025Show more datesHide these dates09/27/202511/11/2025Time: See website for details. Adams Morgan Day annual festival African American Civil War Memorial Museum Arlington Historical Museum Arlington National Cemetery Art Play Learn - Bowie, MD Organization: B&O Railroad Museum - Baltimore, MDLocation: 901 W Pratt StBaltimore, MD, 21223United StatesSee map: Google MapsPhone:(410) 752-2490 B&O Unlocked: B&O C-2943 Caboose - B&O Railroad MuseumDates: 05/21/202505/24/202505/25/2025Time: Tours will be available between 10 AM – 4 PM Organization: B&O Railroad Museum - Baltimore, MDLocation: 901 W Pratt StBaltimore, MD, 21223United StatesSee map: Google MapsPhone:(410) 752-2490 B&O Unlocked: B&O No. X-4055 Camp Car - B&O Railroad MuseumDates: 04/16/202504/19/202504/20/2025Time: Tours will be available between 10 AM – 4 PM Ball’s Bluff Battlefield Regional Park Battle of Upperville | Goose Creek Historic Park Organization: B&O Railroad Museum - Baltimore, MDLocation: 901 W Pratt StBaltimore, MD, 21223United StatesSee map: Google MapsPhone:(410) 752-2490 Blue Star Museums - B&O Railroad MuseumDates: 05/17/202505/18/202505/19/2025Show more datesHide these dates05/20/202505/21/202505/22/202505/23/202505/24/202505/25/202505/26/202505/27/202505/28/202505/29/202505/30/202505/31/202506/01/202506/02/202506/03/202506/04/202506/05/202506/06/202506/07/202506/08/202506/09/202506/10/202506/11/202506/12/202506/13/202506/14/202506/15/202506/16/202506/17/202506/18/202506/19/202506/20/202506/21/202506/22/202506/23/202506/24/202506/25/202506/26/202506/27/202506/28/202506/29/202506/30/202507/01/202507/02/202507/03/202507/05/202507/06/202507/07/202507/08/202507/09/202507/10/202507/11/202507/12/202507/13/202507/14/202507/15/202507/16/202507/17/202507/18/202507/19/202507/20/202507/21/202507/22/202507/23/202507/24/202507/25/202507/26/202507/27/202507/28/202507/29/202507/30/202507/31/202508/01/202508/02/202508/03/202508/04/202508/05/202508/06/202508/07/202508/08/202508/09/202508/10/202508/11/202508/12/202508/13/202508/14/202508/15/202508/16/202508/17/202508/18/202508/19/202508/20/202508/21/202508/22/202508/23/202508/24/202508/25/202508/26/202508/27/202508/28/202508/29/202508/30/202508/31/202509/01/2025Time: 10 am - 4 pm Calleva Calvert Marine Museum - Solomons, MD Capital Jewish Museum Cherry Hill Farmhouse - Falls Church, VA Clara Barton Missing Soldiers Office Museum Colvin Run Mill Historic Site - Great Falls, VA Congressional Cemetery - D.C. Daughters of the American Revolution Museum DIGIVATIONS CAMP DEMIGOD INSTITUTE at Cornell University Educational Connections, Inc. EduRaptor - Personalized Online Learning for K-12 EnthuZiastic Inc. Organization: City of Fairfax, VALocation: 10455 Armstrong St.Fairfax, VA, 22030United StatesSee map: Google MapsPhone:703-385-7858 Fairfax HisTree DayDates: 04/26/2025Time: 10 am - 4 pm Fairfax Station Railroad Museum, VA Fort McHenry National Monument and Historic Shrine Fort Washington Park Frog Tutoring Washington Gaithersburg Community Museum George Washington's Mount Vernon Hillwood Museum Organization: B&O Railroad Museum - Baltimore, MDLocation: 901 W Pratt StBaltimore, MD, 21223United StatesSee map: Google MapsPhone:(410) 752-2490 It’s $10 Admission Day at the B&O!Dates: 05/14/202506/11/202507/09/2025Show more datesHide these dates08/13/202509/10/202510/08/202511/12/2025Time: 10:00AM - 4:00PM Jewish Museum of Maryland Korean War Veterans Memorial Foundation Lee-Fendall House Museum and Garden Loudoun Heritage Farm Museum Lunar Night Cultural Festival Martin Luther King, Jr. Memorial - D.C. Maryland Day Maryland Renaissance Festival Montessori School of Chevy Chase Museum of the Bible - Washington, D.C. Museum of the Palestinian People - D.C. National Building Museum National Capital Trolley Museum National Cherry Blossom Festival National Law Enforcement Museum National Museum of the U.S. Navy Off The Mall Tours - Washington, D.C. Potomac Overlook Regional Park President Lincoln’s Cottage at the Soldiers’ Home Prince William County Historic Preservation Division Reston Museum Riversdale House Museum - MD Saint Pierre Academy of Arts and Sciences Sheridan School Smithsonian - National Museum of African American History and Culture Smithsonian - National Museum of American History Smithsonian - National Museum of Natural History Smithsonian - National Museum of the American Indian Smithsonian's National Museum of Asian Art Spyher, #1 DMV Spy Tours & Experiences The Ballyshaners The Baltimore Luxor Alexandria Sister City Committee The Dumbarton House The Indonesian Kids Performing Arts (IKPA) The Library of Congress THE NATIONAL MEMORIAL DAY CHORAL FESTIVAL The nZone Organization: The Classical Arts Society of WashingtonLocation: 2017 I Street NWWashington , DC, 20016United StatesSee map: Google Maps The Red Violoncello: Prokofiev and the Piazzolla TangoDates: 04/11/2025Time: 6:30-9:30PM Tudor Place Historic House & Garden US Navy Memorial - Washington, D.C. Vietnam Veterans Memorial Fund Walkersville Southern Railroad and Museum - MD Organization: B&O Railroad Museum - Baltimore, MDLocation: 901 W Pratt StBaltimore, MD, 21223United StatesSee map: Google MapsPhone:(410) 752-2490 “Fueling America’sRailroads: Climate Change and the Evolution of Fuel Types” Public Tour at B&O Railroad MuseumDates: 04/22/2025Time: 11 am 10+ Terrific Transportation Museums in New York State
